Question

6÷2(1+2)=?

Answer 1

Facebook!

Answer 2

6dividedby2(3)
3(3)
9

Answer 3

If only...

Answer 4

1?

Answer 5

Yes.

Answer 6

no 9

Answer 7

use order of operations

Answer 8

Yeah, parenthesis first.

Answer 9

the multiplication and division as it occurs left to right

Answer 10

then not the

Answer 11

division occurs first so 6 divided by 2=3
and then multiplication occurs 3(3)=9

Answer 12

Yeah, yeah 9 we get it haha. No really, no lie. it is 9. 1 is common mistake, because of the whole pemdas.

Answer 13

lol

Answer 14

hey loco you figured out your polar question?

Answer 15

6/2(1+2)
=6/2(3)
=3(3)
=9

Answer 16

not yet myininaya

Answer 17

i need help really badly with it :(

Answer 18

The one I was attempting to help on loco?

Answer 19

did you try ising (x=rcos(pheta),y=rsin(pheta))

Answer 20

yeah, but the answers i get are decimals and they don't work and i don't know how to get the exact value.

Answer 21

deciamls?
thats weird shouldn't be decimals
do you have your calculator in radians?

Answer 22

yeah, should i put it in degrees?

Answer 23

no put in degrees if you are using degrees but 15pi is in radians

Answer 24

so we are using radians

Answer 25

Use a unit circle, not a calculator.

Answer 26

I changed it to degrees, but the answer is still in decimals but the only thing is that it becomes negative.

Answer 27

when i did I got (-1,0)

Answer 28

right you could just use the unit circle

Answer 29

how did u get that? can u show me

Answer 30

thats what i did

Answer 31

I would think it'd be much easier, avoid the calculator errors haha.

Answer 32

cos(15pi)=cos(pi)=-1

Answer 33

wait i forgot to multiply the 6 so it is (-6,0)

Answer 34

(-1,0) are wrong says the hw program

Answer 35

there we go that makes more sense

Answer 36

lol

Answer 37

no it's still wrong

Answer 38

we are trying to evaluate (6cos(15pi)),6sin(15pi))

Answer 39

what is it?

Answer 40

(-6,0) is right.

Answer 41

this is the original prob

\[6\sqrt{3}, -6\]

Answer 42

So the problem I tried helping you with?

Answer 43

are we converting that to polar coordinates?

Answer 44

Convert the rectangular coordinates to polar coordinates with r 0 and 0 θ 2π.\[r>0 and 0 \le \theta <\]

Answer 45

ok i was doing converting (6,15pi) to polar my bad

Answer 46

to cartesian*

Answer 47

I had everything pretty much outlined for you on your post loco, well besides the answer.

Answer 48

(12, 7pi/6)

Answer 49

Wouldn't it be (12, 11pi/6)

Answer 50

you might be right one sec..

Answer 51

darn it you are right because cos(11pi/6)=sqrt(3)/2

Answer 52

thanks you so much for taking ur time to help me guys. i wish i could give u real medals :)

Answer 53

I wish I could receive a real medal haha you're welcome.

Answer 54

what loco i wanted to draw you something k?

Answer 55

ok

Answer 56

YESSSSSSSSSSSSSSSSSSSSSSSSSSSS!!! Finally :O

Answer 57

when I drew the point (6sqrt(3),-6) it was just an approximation of where it would lie.

Answer 58

Wow... u did that much work. I feel bad now :(

Answer 59

why? the only reason i would do is because i enjoy lol.
but do you why we use that cos^-1(sqrt(3)/2) instead of the others

Answer 60

because its where our point lies

Answer 61

oh ok

Answer 62

so you completely get it?

Answer 63

not completely, some of it. don't worry i'll be awake all night trying to understand it.

Answer 64

can u try to help me on the other question i posted?

Answer 65

ok go to it and i will follow you k?

Answer 66

ok